[DXLog.net - Support] Problems with F4 and F5 keys in data contest

[Martin Atherton]

Just wondering if this is a known issue. In the RSGB 80m data events I 
use the F1 F2 and F3 keys in run mode to send CQ, QSO data, and TU etc, 
and they always work fine. For S&P the F4 key sends my callsign and the 
F5 key sends the QSO data.

But sometimes the F4 and F5 keys will suddenly stop triggering the PTT 
line - the screen shows the appropriate text going out but the 
transceiver is still in receive. This never happens with F1-F3. When it 
happens I go back to run mode with F1-F3 and I find that if I then 
revert to S&P F4 and F5 are OK again for a while. But then again they 
stop working and I go back to running.

There is probably something blindingly obvious that I am doing wrong but 
can't see it at the moment.

Martin G3ZAY